package com.yxym.super_;

public class A {
    public int n1 = 100;
    protected int n2 = 200;
    int n3 = 300;
    private int n4 = 400;
    public void test100(){}
    protected void test200(){}
    void test300(){}
    private void test400(){}
    public A(){

    }
    public A(String name){

    }
    public A(int age){

    }
    public void call(){
        System.out.println("A类的call方法");
    }

    public int getN4() {
        return n4;
    }

    public void setN4(int n4) {
        this.n4 = n4;
    }
}
